Trane WCVS 270 Betriebsanleitung

Installation

Operation

Maintenance

Self Contained

Water Cooled

Air Conditioners

WCVS-SVX01A-EN

(Aug 2012)

Models

WCVS 270, WCVS 330, WCVS 400, WCVS 470,

WCVS 530, WCVS 600, WCVS 660, WCVS 730,

WCVS 800, WCVS 900, WCVS 12H.

TRANE R

TRANE ®

Foreword

These instructions do not attempt to

cover all variations in system, nor to

provide for every possible contingency

to be met in connection with installation.

Should further information be desired

or should particular problems arise

which are not sufficiently covered for the

purchaser’s purpose, the matter

should be referred to the manufacturer.

Warranty

Warranty is based on the general terms

and conditions of Trane-Ingersoll

Rand. The warranty is void if the

equipment is repaired or modified

without the written approval of the

manufacturer, if the operating limits are

exceeded or if the control system or

the electrical wiring is modified.

Damage due to misuse, lack of

maintenance or failure to comply with

the manufacturer’s instructions or

recommendations is not covered by the

warranty obligation.

Reception

On arrival, inspect the unit before

signing the delivery note. Specify any

damage on the delivery note, and send

a registered letter of protest to the last

carrier of the goods within 72 hours of

delivery. Notify the local Trane Sales

Office at the same time.

The unit should be totally inspected

within 15 days of delivery. If any

concealed damage is discovered, stop

unpacking the shipment.

Take photos of the damage material if

possible. Notify the carrier immediately

by phone and registered mail. Notify

the local Trane Sales Office.

Concealed damage must be reported

within 15 days of delivery.

Check the unit nameplate to confirm

that the proper unit was shipped.

Available power supply must be

compatible with electrical characteristics

specified on component nameplates.

General Information

This manual covers the installation,

operation and maintenance of the Trane

WCVS.

Note:

“Warnings”and “Cautions”appear at

appropriate places in this manual. Your

personal safety and the proper

operation of this machine require that

you follow them carefully. The

manufacturer assumes no liability for

installations or servicing performed by

unqualified personnel.

Handling

The unit will be supplied with a

shipping base and protective

packaging over the unit casing. The

packaging should be kept on the unit

during handling or storage on site.

lf it is necessary to remove the packaging

for inspection prior to completion of on

site handling, retain packaging parts

and reapply them by tapping in position

Performance Data

to prevent damage to the casing. The

unit as supplied has a shipping base

which is suitable for handling by a fork

lift truck. If it is necessary to sling the

unit, use spreader bars under the

shipping base. Ensure that ropes do

not cause abrasion to the surface of

the unit.

(i)

TRANE ®

Contents

(ii)

WCVS Model Nomenclature

General Specification

General Information

Installation

Operation / Start-up

Coil / Condenser Cleaning

Trouble Analysis Guide

Electrical Data

Electrical Wiring

Unit Dimensions

Wiring Diagram

Schematic Wiring Diagram

4-6

7-10

15-19

21-25

TRANE ®

WCVS Model Nomenclature

W C V S 2 7 0 D 1 C X I A 0 D

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Water Cooled / Self contained / Vertical

Development Sequence

Unit Size

270 600

330 660

400 730

470 800

530 900

12H

Electrical Rating / Utilization Range

D = 380 - 415V / 3 Phase / 50 Hz

Factory Mounted Control

1 = DOL(4w) STR with Unitary Controller, UC2c / UC4C.

2 = Soft Starter with Unitary Controller, UC2c / UC4c. (Consult Factory)

Minor Design Sequence

C = Double Wall PU Panels - Standard on all models & Introduction of FUJI Starter

Factory Installed Options

X = None

Installed Motor kW

Refrigerent Type

A = R22

B = R407c

Future Use

Service Indicator

D = Introduction of Externally Manifolded Condenser on WCVS 600-800.

DIGIT 1,2,3

DIGIT 4

DIGIT 5,6,7

DIGIT 8

DIGIT 9

DIGIT 10

DIGIT 11

DIGIT 12

DIGIT 13

DIGIT 14

DIGIT 15

W C V

2 7 0

WCVS Models

WCVS 270

WCVS 330

WCVS 400 / 470 / 530

WCVS 600 / 660

WCVS 730 / 800

WCVS 900

WVCS 12H

STD.MTR, Kw

I = 3.7

K = 5.5

L = 7.5

M = 11

N = 15

P = 22

O/Size MTR, Kw

K = 5.5

L = 7.5

M = 11

N = 15

O = 18.5

TRANE ®

General Specification

WCVS 270-12H

TRANE ®

General Information

General information

The multiple-compressor WCVS units

consist of compressors, water-cooled

condensers, an evaporator coil, and FC

fan. Each unit is shipped with refrigerant

and oil charge with complete refrigerant

piping. Each refrigerant circuit includes

a brazed filter-drier, condenser pressure

relief valve, sightglass, high and low

pressure access ports, thermal

expansion valve with external

equalizer, lock-out safety and thermal

overloads for each compressor, time

delay safety and high-low pressure

cut-out switches.

The evaporator fan is of double-width

double inlet forward curved fan.

Rigging

Before preparing the unit or

component for lifting, estimate the

approximate centre of gravity for lifting

safety. Due to the placement of internal

components, the unit weights may be

unevenly distributed. Unit weights are

provided in the general specification.

WARNING: To prevent injury or

death and unit damage, observe

handling cautions and procedures

given in Figure 1 when lifting the unit.

Always test-lift the unit to determine

actual centre of gravity.

Special Note on Refrigeration

Emissions

World environmental scientists have

concluded, based on the best

currently available evidence, that

ozone in our upper atmosphere is

being reduced due to release of CFC

fully halogenated compounds.

Trane-Ingersoll Rand urges all

HVAC servicers working on Trane

equipment, or any manufacturer’s

products, make every effort to

eliminate, if possible, or vigorously

reduce the emission of CFC, HCFC,

and HFC refrigerants to the

atmosphere resulting from

installation, operation, routine

maintenance, or major service on

this equipment. Always act in a

responsible manner to conserve

refrigerants for continued use even

when acceptable alternatives are

available.

TRANE ®

Installation

For proper installation, consider the

following:

Unit nameplate

The unit nameplate gives the full model

reference. The operating voltage must

be as specified and must not vary by

more than 6%.

Foundation

Ensure the floor to foundation of the

unit is level, solid and of sufficient

strength to support the unit weight.

Level the floor if necessary before

placing the unit. Please refer to

(General Specification) for information

on weights.

Clearances

Provide sufficient clearance around the

unit. Please refer to the section on

dimensions for recommended service

are required. The service envelope

shown is the minimum required for

general maintenance of fans and

refrigerant components. The

minimum room required to remove

fans, fan motor, compressors and

condensers was considered.

However, the service envelopes

provided do not include space required

for change of shaft or removal of coils

or local electrical codes.

Piping

The installer must furnish and install a

condenser main and standby water

pump, cooling tower, pressure gauges,

strainers and all components for

waterside piping. All field installed

piping must conform to applicable local

codes. Recommended piping

components is provided in figure 2, to

ensure proper, clean and serviceable

supply.

Air Filters

Please refer to unit dimension al data

for information on filter layout.

Condensate drain

connections

Connect drain piping to a 1-1/4 inch

fitting. Piping should be no smaller than

7/8 inch-OD copper or ¾ inch iron pipe.

Pitch the line away from the drain pan

and install a P-trap.

Vibration Isolation

All units will be shipped with rubber-

in-shear isolators at the base which

holds the compressors. For further

vibration and acoustic isolation, it is

recommended to install neoprene

rubber padding along the perimeter of

the unit base.

Refrigerant Circuit

Single manifolded circuit on WCVS

270,WCVS 330 and WCVS 400.

Two manifolded circuits on WCVS 470-

800.

Manifolded circuits will have two

compressors manifolded.

Figure 3 shows a typical manifolded

circuit for WCVS.

Note: Unit has no floor drainpan.

(Secondary drainpan)

Figure 2-Condenser Water Piping Components

for Cooling Tower System.

TRANE ®

Installation - Condenser

Water Pressure Drop Data

WCVS 270 / 330 / 400

WCVS 470 / 530

Condenser 25 T, Pressure Drop Vs GPM

1.3

2.3

3.3

4.3

5.3

6.3

7.3

8.3

9.3

10.3

11.3

35 45 55 65 75 85 95 105

GPM

Water Pressure Drop (Ft H20)

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Water Pressure Drop (Psi)

:&96

:&96

:&96

Condenser 35 T, Pressure Drop Vs GPM

2.31

3.31

4.31

5.31

6.31

7.31

8.31

9.31

10.31

11.31

12.31

13.31

14.31

15.31

16.31

17.31

18.31

19.31

20.31

21.31

22.31

65.0 75.0 85.0 95.0 105.0 115.0 125.0

GPM

Water Pressure Drop (Ft H20)

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

Water Pressure Drop (Psi)

:&96

:&96

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